光条纹

ABSTRACT Photoplasticity is a method using the high polymer model with the transparent double refraction phenomenon and defining the object's elastic-plastic strain field by the optical image stripe which went beyond the elastic limit.

光塑性法是应用具有透明双折射现象的高分子材料的模型，由超过材料弹性极限下模型的光学图象条纹来确定物体弹塑性应变场的一种方法，这种方法又称为非线性光力学法。

Mach-Zehnder Optical fiber space interferometer is an optical instrument in which the traditional optical interferometer arms are substituted by two fibers. It uses a visible light, and the interference of beams from fibers will be observed in the screen.

光纤Mach-Zehnder干涉仪是利用光纤代替常规M-Z干涉仪传输光路的一种仪器，使用在可见波段，由光纤出射的光在空间进行干涉，在干涉屏上出现可见的干涉条纹。

Based on the dynamic stress optic law and by making use of the stress values from strain measurements and BEM calculation, the history of birefringent fringe orders are calculated, and compared with the result of dynamic orthotropic photoelasticity.

把动态应变测量推算出的应力分量以及时域边界元计算出的应力分量分别代入正交异性动态应力－光性定律，得到随时间变化的双折射条纹级数历程，将其与正交异性动态光弹性实验的结果进行比较。

Based on the structured light measurement principle, this thesis proposes a new micro 3D measurement system utilizing the merits of flexible, bendable, and long distance signal transmission of the fiber image bundle.

根据结构光测量原理，利用光纤传像束所具有的自由度大、能弯曲、易实现长光路等特点，结合数字条纹投影技术和相位移测量技术，本论文提出了一种新型微三维测量系统。

He data and information of photomechanics are often represented by optical interferometric 〓ringe patterns. The first major contribution of this dissertation is study on fringe pattern 〓utomatic processing.It is significant in techniques and engineering applications to reduce noise and recovery 〓he phase of interferometric fringe pattern.

光测力学的实验数据和信息，都是用光学干涉条纹图来表示的，因此本文首先侧重于用数字图像处理技术，对光学干涉条纹进行自动处理的方法与技术的应用研究，这对于从光学量进一步获得正确的力学量数据的作用是十分重要的。

Firstly,an interferogram was generated by interference between the ±5 orders beams diffracted by the grating.

首先利用长度400mm，栅距10μm计量光栅的±5级衍射光生成条纹图，实现了条纹的10倍光学细分。

Measurement accuracy could be improved in the way of making full use of 0-class orientating of complex lights equal thickness interference.

采用白光等厚干涉的方法，可以充分利用白光等厚干涉零级条纹的高精度定位作用，提高测量精度。

We focus on resolving the following problems in FTP, that is how to guarantee the measurement accuracy of FTP when the connect line between the exit pupil of the projecting lens and that of the entrance pupil of the imaging lens is not parallel to the reference, or the two pupils are not coplanar, or neither the connect line parallel to the reference nor the two pupils coplanar.

推导出了适用范围更广泛的变形条纹描述公式和相位计算方法以及相位—高度映射算法。对于传统的傅里叶变换轮廓术测量系统而言，由于要求投影仪出瞳与摄像机入瞳连线与参考面平行，而且要求投影仪光轴与摄像机光轴共面，所以它可以被看作是本文所提出系统结构在该种情况下的一种特例。

Young's two slits interference of discrete double light source is numerically simulated,and the curve of visibility, curve of light distribution and interference pattern are solved with different type of line and line width.

对分立双谱线光源的杨氏双缝干涉进行模拟，求解出不同线型和线宽时干涉条纹的可见度曲线、光强分布曲线和干涉图样，用直观的计算机图形说明了分立双谱线的线型和线宽对干涉条纹的影响。

Through surveys the He-Ne laser wave length, the sodium lamp, the white light interference experiment, the discussion stripe change and two plane mirror's inclination angle and the parallelism relations, quick observation white light interference skill and principle.

通过测量He-Ne激光波长，钠光、白光干涉仪的实验，讨论条纹的变化与两个平面镜的倾角与平行度的关系，快速观察白光干涉仪的技巧和原理。

As she looked at Warrington's manly face, and dark, melancholy eyes, she had settled in her mind that he must have been the victim of an unhappy attachment.

每逢看到沃林顿那刚毅的脸，那乌黑、忧郁的眼睛，她便会相信，他一定作过不幸的爱情的受害者。

Maybe they'll disappear into a pothole.

也许他们将在壶穴里消失